After a couple days of random Google searches, I finally was able to put together enough information to figure out how to make a bootable USB drive to restore my Mac using a PC. Yes, my Mac took a dive, a huge one. How to create a Bootable USB Stick for Mac OS X from.dmg and.app file. If you are trying to make a fresh installation of OS X on your Mac or just want to Factory Reset MacBook Pro, MacBook Air or even iMac, the better way to do is make a bootable flash drive or USB Stick for Mac.
Image via Before You Start The obvious first step here is to. But before you do anything else, a word of caution: once you've used the OS X installer, it will automatically delete the file you need to make the backup disk, so you'll want to either make a copy of the installer or create your disk before you upgrade. You can use a USB flash drive, external hard drive, or DVD-R disc, but the USB drive is quicker. If you're using a USB drive, it has to be formatted as 'Mac OS Extended (Journaled)' and set to partition type 'GUID Partition Table' in order to work.
![How To Make Usb Bootable For Mac On A Pc How To Make Usb Bootable For Mac On A Pc](/uploads/1/2/5/3/125353956/975541504.jpg)
Image via Once inside, browse to the ' Contents SharedSupport' folder where there will be a file called ' InstallESD.dmg.' This is the image file that contains the information you need to create the backup disk. Step 2: Open Disk Utility (located in your Applications Utilities folder). Step 3: Drag and drop the ' InstallESD.dmg' into the list of drives on the left and select it. This should make it appear in the Source box on the right.
If not, you may have to click the ' Restore' tab as seen below.